# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html

# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.4.1)

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

add_library( # Sets the name of the library.
             xctt-lib

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             src/main/cpp/cmdutils.c
             src/main/cpp/ffmpeg.c
             src/main/cpp/ffmpeg_filter.c
             src/main/cpp/ffmpeg_hw.c
             src/main/cpp/ffmpeg_opt.c
             src/main/cpp/xctt-lib.c )

set(FFMPEG_LIB_DIR ${CMAKE_SOURCE_DIR}/libs/armeabi-v7a)

#添加libavcodec.so
add_library(
    avcodec
    SHARED
    IMPORTED
)
set_target_properties(
    avcodec
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libavcodec.so
)

#添加libavdevice.so
add_library(
    avdevice
    SHARED
    IMPORTED
)
set_target_properties(
    avdevice
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libavdevice.so
)

#添加libavfilter.so
add_library(
    avfilter
    SHARED
    IMPORTED
)
set_target_properties(
    avfilter
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libavfilter.so
)

#添加libavformat.so
add_library(
    avformat
    SHARED
    IMPORTED
)
set_target_properties(
    avformat
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libavformat.so
)

#添加libavutil.so
add_library(
    avutil
    SHARED
    IMPORTED
)
set_target_properties(
    avutil
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libavutil.so
)

#添加libswresample.so
add_library(
    swresample
    SHARED
    IMPORTED
)
set_target_properties(
    swresample
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libswresample.so
)

#添加libswscale.so
add_library(
    swscale
    SHARED
    IMPORTED
)
set_target_properties(
    swscale
    PROPERTIES IMPORTED_LOCATION
    ${FFMPEG_LIB_DIR}/libswscale.so
)

include_directories(
    ./src/main/cpp
)

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

find_library( # Sets the name of the path variable.
              log-lib

              # Specifies the name of the NDK library that
              # you want CMake to locate.
              log )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( # Specifies the target library.
                       xctt-lib
                       avcodec
                       avdevice
                       avfilter
                       avformat
                       avutil
                       swresample
                       swscale

                       # Links the target library to the log library
                       # included in the NDK.
                       ${log-lib} )